#include <iostream>
#include <algorithm>

using namespace std;

int main(){
    int T, A, B;
    cin >> T >> A >> B;
    int m = max(A, B);
    if(m > T || (T==1 && A==0 && B==0)){
        cout << "NO" << endl;
    }else{
        cout << "YES" << endl;
        int r = T - m;
        if(r % 2 == 1){
            if(B == 0){
                cout << "^>" << endl;
                cout << "<" << endl;
                T -= 2;
                A -= 1;
            }else if(A == 0){
                cout << "^>" << endl;
                cout << "v" << endl;
                T -= 2;
                B -= 1;
            }else{
                cout << "^" << endl;
                cout << ">" << endl;
                T -= 2;
                A -= 1;
                B -= 1;
            }
        }
        while(A > 0 || B > 0){
            if(A > 0 && B > 0){
                cout << "^>" << endl;
                T--;
                A--; B--;
            }else if(A > 0){
                cout << "^" << endl;
                T--; A--;
            }else if(B > 0){
                cout << ">" << endl;
                T--; B--;
            }
        }
        while(T > 0){
            cout << ">" << endl;
            cout << "<" << endl;
            T -= 2;
        }
    }
    return 0;
}